Malicious PDF — malware analysis report

Static analysis result for SHA-256 38a61b652e21e885…

MALICIOUS

PDF

72.0 KB Created: 2021-02-06 00:54:03 +02:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2021-05-04
MD5: 9fa72bf313671ddddaf35779fab16512 SHA-1: a95ccdfd7774aeda1b3384e443fd33b3320db502 SHA-256: 38a61b652e21e885514423d1fee11df33269dcc1fd2a3d3c9f65a2c65f8d00b9
126 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 0.9998

Heuristics 5

  • ClamAV: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0 critical CLAMAV_DETECTION
    ClamAV detected this file as malware: Pdf.Phishing.Trojan-d2568dad23a94d95-d2568dad23a94d95-10044375-0
  • Small PDF is a non-clustered link farm on disposable hosting medium PDF_SEO_DISPOSABLE_LINK_FARM
    Small PDF contains many clickable external PDF links spread thin across many distinct hosts (no single dominant host), corroborated by a utm_term SEO-redirector link and/or links parked on free/disposable content hosts. This is the 'free document/template' SEO phishing PDF family, which ranks for search queries and routes users into payload/redirect chains, rather than a normal document citation pattern. The PDF itself carries no exploit — the risk is the linked destinations.
  • External URI info PDF_URI
    PDF contains an external URL action
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://jottigo.ru/wb?keyword=submit%20button%20outside%20form%20internet%20explorer PDF link annotation
    • https://cdn-cms.f-static.net/uploads/4468540/normal_5fd2c2e8c5376.pdfIn PDF document text
    • http://org-fruit.space/fegixhpvo9.pdfIn PDF document text
    • http://nawukebakesejid.iblogger.org/formal_presentation_powerpoint.pdfIn PDF document text
    • https://geperibikabagop.weebly.com/uploads/1/3/1/4/131409385/4517786.pdfIn PDF document text
    • https://wusaworapivuwor.weebly.com/uploads/1/3/4/6/134659128/39cd4ea.pdfIn PDF document text
    • https://cdn.sqhk.co/kefesizo/ji1jbmM/hungry_shark_world_hack_2020_mod_apk.pdfIn PDF document text
    • https://cdn.sqhk.co/dosojegomugu/l3hbeGB/unicorn_photo_props_free_download.pdfIn PDF document text
    • http://shop-onlinediscount.xyz/tipos_de_cristalizacinx7d8v.pdfIn PDF document text
    • http://organic-ita.space/sepefidewejifewo9t3wg.pdfIn PDF document text
    • http://springtea.space/sudoku_puzzles_very_easy_9x98e0cb.pdfIn PDF document text
    • https://woxukobu.weebly.com/uploads/1/3/4/3/134392577/foluk.pdfIn PDF document text
    • https://cdn-cms.f-static.net/uploads/4375361/normal_6010c50c676a5.pdfIn PDF document text
    • https://selemuja.weebly.com/uploads/1/3/4/8/134893326/2804017.pdfIn PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • https://s3.amazonaws.com/lofese/moduzedatakax.pdfIn PDF document text
    • https://s3.amazonaws.com/fulosobezur/taxarixixukarud.pdfIn PDF document text
    • http://nepogewapiw.epizy.com/wuxukigagitakivelimo.pdfIn PDF document text
    • https://s3.amazonaws.com/dugibabafod/6585501482.pdfIn PDF document text
    • http://lufeneweb.epizy.com/bethune_college_admission_form_2019.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 2

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000dc73.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xDC73 5288 bytes
SHA-256: 2b5febeeec61accebb26757446d259b094c1e86d6ba4b19c315b3b5e6ee00191
font_01_sfnt_off0000ee58.bin pdf-font-stream PDF embedded font (sfnt) at offset 0xEE58 10652 bytes
SHA-256: 2f59b28468b8730644ff7fa3361998710dc2d10719ad82bf894409a43e07bfb8